For longer travels, when those large Bose noise-canceling headphones won't fit into your backpack or carry-on - or when you don't want to look like a snobby technophile - try a set of Ultimate Ears "noise isolating" headphones. These in-ear buds don't cancel noise like the large, head covering models do, but the silicone ear cushions successfully block out a good amount of external noise (like airline engine hum or crying babies) and are subtle and comfortable enough to wear on long trips.

Compared with standard MP3-player ear buds, these are like listening to a live concert. They come with several sets of malleable silicone and foam "ear cushions" to help you find the best fit, and even an "airline attenuator" jack, so surprise cabin announcements don't leave you deaf.

What we liked: Awesome sound quality; comfy in-ear fit; does a great job at blocking out external noise. Small and easy to carry in plastic case.

Not so much: Pricey for a set of small headphones (close to $150), which made me constantly worry I'd break or lose them (the hard carrying case is helpful). So powerful, I almost blew out my eardrums the first time I used them with my iPod on high volume.